Okay, thanks Rob. I was assuming that the DatabasePager should load the nodes, but it is nice to have confirmation.
I'll do some stepping. > -----Original Message----- > From: Robert Osfield [mailto:robert.osfi...@gmail.com] > Sent: Tuesday, 23 December 2008 7:31 PM > To: OpenSceneGraph Users > Subject: Re: [osg-users] Using TerraPage database and > osgSim::LineOfSightfor non-displayed scene graph - how to get > nodes to page in? > > Hi Anthony, > > I'm afraid I've never tried to combine TerraPage databases > with the osg::Sim lntersection classes, so can't point you in > any particular direction. In theory the .txp plugin creates > PagedLOD's and then leverages the osgDB::DatabasePager for > paging, so should be mappable across to how the osgSim > intersections classes read tiles in, but clearly there must > be something amiss as to what it might be I can't say. > You'll need to step through the .txp plugin with a debug to > see what the difference are between when it's paged by the > normal viewer vs the osgSim intersection classes. > > Robert. > > On Mon, Dec 22, 2008 at 10:34 PM, I-Nixon, Anthony D > <anthony.d.ni...@boeing.com> wrote: > > Hello everyone: > > > > I'm trying to compute LOS on a scene graph that is not > being displayed > > (this is for "offline" analysis). > > > > Code looks a bit like this: > > > > > > osgDB::FilePathList > > filePath(osgDB::Registry::instance()->getDataFilePathList()); > > filePath.push_front(dirContainingTerrain); > > osgDB::Registry::instance()->setDataFilePathList(filePath); > > > > osg::ref_ptr<osg::Node> terrain = > > osgDB::readNodeFile("archive.txp"); > > > > osgSim::LineOfSight::Intersections ints = > > osgSim::LineOfSight::computeIntersections(terrain.get(), aPoint, > > theOtherPoint); > > > > The issue is that the TerraPage loader doesn't seem to load in the > > paged LODs. Is there something I need to do to trigger this? The > > above code works fine for ive based Paged terrain > (generated using osgdem). > > > > The LineOfSight is functioning as expected if the scene graph is > > displayed in a viewer. > > > > Any pointers would be most appreciated. > > > > This is with OSG 2.6.1 > > > > Thanks in advance. > > > > // Anthony Nixon > > // Modelling & Simulation Architect > > // Systems Analysis Laboratory > > // Boeing Defence Australia > > > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph. > > org > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-opensce > negraph.org > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
